The most popular free simulation PC games

These are the 30 most popular free games on Free Games Utopia this month, ranked by page visits. The more people visit a game's page, the higher it appears on the list. This isn't a ranking based on reviews or our personal opinions, but simply a snapshot of the games attracting the most attention from our visitors right now.

The list covers different genres, decades and platforms, so expect a rather mixed bunch of games. The ranking is updated every month, giving you a chance to see which games are getting the most attention at the moment.

action adventure card game platformer puzzle RPG shooter simulation strategy all genres

#	title	genre	status	rating
01.	AChat WindowsNSFW	simulation / dating sim	free-to-play, with microtransactions	2.83 / 5
02.	Ascii Sector Windows, Linux, Mac OSX	simulation / space exploration	free, optional donation	4.12 / 5
03.	OpenTTD Windows, Linux, Mac OSX, Free BSD, Solaris	simulation / business simulation	open source	4.21 / 5
04.	Crush Crush Windows, Mac OSX, Linux, AndroidNSFW	simulation / dating sim	full free version	2.80 / 5
05.	Dwarf Fortress Windows, Linux, Mac OSX	simulation / roguelike	free, optional donation	4.10 / 5
06.	Space Engine Windows	simulation / space exploration	free, optional donation	3.17 / 5
07.	Blush Blush Windows, Linux, Mac OSXNSFW	simulation / dating sim	free-to-play, with microtransactions	3.07 / 5
08.	Janitor of Love Windows, Mac OSX, Linux, AndroidNSFW	simulation / visual novel	free, optional donation	3.00 / 5
09.	Oolite Windows, Mac OSX, Linux, Free BSD	simulation / space exploration	full free version	3.83 / 5
10.	College Kings - Act I Windows, Mac OSX, AndroidNSFW	simulation / dating sim	free demo	2.60 / 5
11.	Orbiter Windows	simulation / flight simulator	free, optional donation	3.75 / 5
12.	Pioneer Windows, Linux, Mac OSX	simulation / space exploration	open source	3.50 / 5
13.	Railroad Tycoon DOS, Mac OSX	simulation / business simulation	abandonware	3.75 / 5
14.	Amorous Windows, Linux, Mac OSXNSFW	simulation / dating sim	full free version	2.75 / 5
15.	Popmundo browser	simulation / business simulation	free-to-play, with microtransactions	3.38 / 5
16.	Fallout Shelter Windows, iOS, Android	simulation / business simulation	full free version	3.44 / 5
17.	Second Life Windows, Mac OSX, Linux	simulation	free-to-play, with microtransactions	3.67 / 5
18.	OpenRCT2 Windows, Linux, Mac OSX	simulation / business simulation	open source	3.63 / 5
19.	Noctis DOS, Windows	simulation / space exploration	full free version	3.50 / 5
20.	Simutrans Windows, Linux, Mac OSX, BeOS	simulation / business simulation	open source	3.64 / 5
21.	Wazzal Windows	simulation / space exploration	open source	2.88 / 5
22.	Hentai Heroes browserNSFW	simulation / dating sim	free-to-play, with microtransactions	3.05 / 5
23.	Unknown Horizons Windows, Linux, Mac OSX	simulation / city building	open source	4.06 / 5
24.	Hattrick browser	simulation / business simulation	free-to-play, with microtransactions	3.67 / 5
25.	Racer Windows, Linux, Mac OSX	simulation / racing	full free version	3.38 / 5
26.	Strange Adventures in Infinite Space Windows, Mac OSX	simulation / rogue-lite	open source	3.60 / 5
27.	Stellar Trader Windows	simulation / space exploration	full free version	3.33 / 5
28.	Microsoft Allegiance Windows	simulation / space combat	liberated	3.14 / 5
29.	TORCS Windows, Solaris, Linux, Free BSD, Mac OSX	simulation / racing	open source	3.78 / 5
30.	The Powder Toy Windows, browser	simulation	full free version	3.50 / 5

How is the monthly ranking calculated?

This isn't a ranking based on reviews or our personal favourites. The order is based on the number of visits to each game page during the current month, so the list reflects what Free Games Utopia visitors are actually checking out right now.

The ranking is reset each month, which means the list can look quite different from one month to the next. A game that gets a sudden burst of attention can climb quickly, while something that was popular last month may not make the list this time around. You'll find a rather mixed bunch here, from old freeware and classic games to newer free-to-play titles and browser games.

Want to see what's popular in a particular genre? Use the filters above to narrow the list down to RPGs, strategy games, shooters, adventures and more.